William Bullock (1813–1867) invented the web rotary printing press. Several years after its invention, his foot was crushed during the installation of the new machine in Philadelphia. The crushed foot developed gangrene and Bullock died during the amputation.
Aurel Vlaicu (1882–1913) died when his self-constructed airplane, Vlaicu II, failed during an attempt to cross the Carpathian Mountains by air.
Michael Dacre (died 2009, aged 53) died after testing his flying taxi device designed to permit fast, affordable travel between regional cities.
14Jean-François Pilâtre de Rozier
Jean-François Pilâtre de Rozier was the first known fatality in an air crash when his Rozière balloon crashed on 15 June 1785 while he and Pierre Romain attempted to cross the English Channel.
15Horace Lawson Hunley
Horace Lawson Hunley (died 1863, age 40), Confederate marine engineer and inventor of the first combat submarine, Hunley, died during a trial of his vessel. During a routine test of the submarine, which had already suffered one accident, Hunley took command. After failing to resurface, Hunley and the seven other crew members drowned. The navy salvaged the submarine and put it back into use.